BASEL, SWITZERLAND - OCTOBER 27: Winner Juan Martin del Potro of Argentina (R) and runner-up Roger Federer pose with their trophies at the Swiss Indoors ATP Tennis after the final match against Roger Federer of Switzerland and Juan Martin del Potro of Argentina at St Jakobshalle on October 27, 2013 in Basel, Switzerland. (Photo by Harold Cunningham/Getty Images)
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